Hello, i read all the 99 pages of posts and apologize if i lost something..
but now i have a problem that i have not seen written, (sorry if i haven't see it)
i just charged the last KK 1.5 firmware in the KK 2.0 LCD and i have a problem with the throttle.
Now isn't possible to push up fast the throttle becouse i have a strange reaction and the Multirotor crash.. like when you want to make a flip, you push fast the throttle up, just to explain in which case i get this problem..
I made again the ESC Calibration with throttle and Receiver one by one and checked many times the travel.
What can i check to try to solve this kind of problem?

question...i may be in the wrong thread for this but it does pertain to the KK2 board...

So I went to go start up my lazy zero flash tool last night and it wont work anymore...i get an error that my PC cant open it...it used to work and i think it may have something to do with the Java update i did recently...

is there a certain java level you have to be on in order for this to work properly? Im on a win 7 machine...i remember when i first loaded it i had a heck of a time getting it to work...any suggestions would be great and or point me to the correct thread...i know there is one for the flash tool around here somewhere...couldnt find it though.

Mine is still being a nightmare though.. Perhaps being so small is playing a part in it.
Ive ordered new motors because the old ones seem to have some small vibrations in it.
If that doesn't make it shape up a bit on setting it up however, im selling both my KK2 boards..
I bought em because they're supposed to be easier than my multiwii setup, but sofar...

It's probably the vibrations not the board. MWC will probably need serious LPF to work right. These smaller, faster RPM, motors and unbalanced props are a PITA.

Quote:

The biggest problem I've had with my PCB quadrotor has been mechanical vibration disturbing the rate gyros and causing the angle estimate to drift or be unstable. While the small and flexible frame exaggerates the vibrations, their source is imbalance of the propellers and, to a lesser extent, the motors themselves.

Mine is still being a nightmare though.. Perhaps being so small is playing a part in it.

The size does not matter ;-)
I have tried my friends HK Turnigy micro quad (very small) with KK2 board and it is totally stable.
But today he came to me and had stability problems and i found 2 props wobbling after a crash = vibrations, i think that you will fix the problem with the new (no vib) motors.

New member here. I'm building a FPVManuals Tricopter and just wanted to thank you all for all of the helpful posts. I am going with the KK2, have worked with Atmel micros for years and have it flashed to 1.5 using avrdude under Linux with an STK500V2, and am waiting on the other parts and pieces to arrive so I can get building.

I used to fly a lot of R/C aircraft but that was decades ago. Started with an Ace pulse-proportional, graduated to an EK brick, and lots of stuff not worth mentioning - but I've been around this hobby for a while.

I wouldn't have had a clue what a SimonK-flashed ESC was without you guys, but that is what I'll be running. I also found out my old Futaba 7C might have an all-zero GUID (not good!) so just dropped it off at UPS to get it upgraded.

So anyway, thanks to all the work and good stuff. The plan is full FPV with GoPro and to get photos and videos of the scenery out here - and not buzz crowds and people like some of the videos I've seen posted. Unbelievable that some people don't think these meat cutters can cause pretty massive damage to living things.

So anyway, I'm sure I'll be asking questions but I've got a pretty good lay of the land for now. Thanks again!

Hello, i read all the 99 pages of posts and apologize if i lost something..
but now i have a problem that i have not seen written, (sorry if i haven't see it)
i just charged the last KK 1.5 firmware in the KK 2.0 LCD and i have a problem with the throttle.
Now isn't possible to push up fast the throttle becouse i have a strange reaction and the Multirotor crash.. like when you want to make a flip, you push fast the throttle up, just to explain in which case i get this problem..
I made again the ESC Calibration with throttle and Receiver one by one and checked many times the travel.
What can i check to try to solve this kind of problem?

Did you re-select the right model type after you upgraded the FW? Failing to do that seems to be a common source of problems. A.